We look at the division of 630510 by 45 
Let's see how many times 45 fits into 630510.

Let's proceed to step 1:
45 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 45

On to step 2:
If we divide 63 by 45, we get 1 and a remainder of 18.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 45 from 63 leaves us with 18.
Take the next digit (0) from the dividend and append it to 18, then repeat: 180 / 45

Moving on to step 3:
45 goes into 180 4 times with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we subtract 180 from 180, we get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 45

On to step 4:
When dividing 5 by 45, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 140.0
If we subtract 0 from 5, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 45

Moving on to step 5:
45 goes into 51 1 times with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 1401.0
Subtract 45 from 51 to get 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 45

Advancing to step 6:
If we divide 60 by 45, we get 1 and a remainder of 15.
The next digit of our result is 1. 
Result so far: 14011.0
If we subtract 45 from 60, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 7:
When dividing 150 by 45, we get 3 with a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 14011.3
Subtract 135 from 150 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 8:
The number 45 fits into 150 3 times, leaving a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 14011.33
Deduct 135 from 150 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final result is 14011.33 with a remainder of 0.015.